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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20148B5761996-10-0404 October 1996
Summary of 434th Meeting of ACRS on 960912-13 Re Capability of SCAP/RELAP5 Code to Predict SG Temps During Severe Accidents
ML20129G4921996-08-29029 August 1996
Summary of 433rd ACRS Meeting on 960808-10 Re Design Changes Proposed by Asea Brown Boveri - C-E Re Certification of Sys 80+ Design,Secy 96-128,proposed Rev 3 to Reg Guide 1.8,revs to Reg Guides 1.84,1.85 & 1.147 & Rev 3 to Reg Guide 1.105
ML20059H7581994-01-0303 January 1994
Summary of Operating Reactors Events Meeting 93-48 on 931222
ML20059C8321993-07-21021 July 1993
Summary of 398th ACRS Meeting on 930610-11 in Bethesda,Md Re SECY-93-113,public Comments on Advanced LWR Severe Accident Plant performance,SECY-93-067 & Reactor Operating Experience Related to Salem Unit 2 & Indian Point Unit 3
ML20056E2121993-06-15015 June 1993
Summary of Operating Reactors Events Meeting 93-21 on 930609
ML20056D8341993-05-26026 May 1993
Summary of Operator Reactors Event Meeting 93-18 on 930519
ML20056D9841993-05-18018 May 1993
Summary of Operating Reactors Events Meeting 93-17 on 930512
ML20127D1321993-01-12012 January 1993
Summary of Operating Reactors Events Meeting 93-01 on 930106
ML18096A8711992-06-17017 June 1992
Summary of 920602 Meeting W/Nrc & Pse&G Re Sea Turtle Conservation Plan.Major Points Discussed in Meeting Listed
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058K0311990-11-23023 November 1990
Summary of Operating Reactors Events Meeting 90-28 on 901114 Re Reactor Scrams for Wk Ending 901111.Attendees Listed
ML20062C8111990-10-16016 October 1990
Summary of Operating Reactors Events Meeting 90-25 on 901010.List of Attendees,Reactor Scram Statistics & Tabulation of Events Encl
ML20247K2471989-08-24024 August 1989
Trip Rept of Staff 890718-19,21 & 0801-02 Visits to Nuclear Power Plants to Gather Info Re Industry Actions to Address Loss of Oil Malfunctions of Rosemount Models 1153 & 1154 Transmitters
ML20245G6411989-06-15015 June 1989
Summary of Operating Reactors Events Meeting 89-23 on 890614.On 890607,multiple Electrical Distribution Sys Problems Occurred at Oconee,Units 1,2 & 3.On 890610,unit Power Signal Caused Scram
ML20245A3851989-05-30030 May 1989
Summary of Operating Reactors Events Meeting 89-20 on 890524.List of Meeting Attendees & Viewgraphs Encl
ML20247K0901989-05-23023 May 1989
Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl
ML20247K1011989-05-16016 May 1989
Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators
ML20245C6541989-04-12012 April 1989
Summarizes 890313 Meeting w/C-E to Discuss Results of Salem Project & Licensing of Future C-E Projects Re RTD Bypass Elimination.Agenda & Viewgraphs Encl
ML20150D7171988-07-0707 July 1988
Summary of Operating Reactors Events Meeting 88-26 on 880628
ML20153B0281988-06-22022 June 1988
Summary of Operating Reactors Events Meeting 88-25 on 880621.List of Attendees,Discussion of Significant Elements of Events & Summary of Reactor Scrams Encl
ML20148S3821988-03-31031 March 1988
Summary of Operating Reactors Events Meeting 88-13 on 880329.List of Attendees,Discussion of Events & Summary of Reactor Scrams Encl
ML20148Q0801988-01-21021 January 1988
Summary of Operating Reactors Events Meeting 88-03 on 880119.List of Events & Summaries of Presented Events & 1988 Scrams Encl
ML20148H6621988-01-15015 January 1988
Summary of Operating Reactors Events Meeting 88-02 on 880112 Re Events Which Occurred Since Last Meeting on 880105.List of Attendees,Significant Elements of Events & Tabulation of long-term Followup Assignments to Be Completed Encl
ML20149F4741988-01-0707 January 1988
Summary of Operating Reactors Events Meeting 88-01 on 870105 Re Events That Occurred Since 871222.List of Attendees & Viewgraphs Encl
ML20237F2471987-12-18018 December 1987
Summary of Operating Reactor Events Meeting 87-44 on 871215. List of Attendees,Events Discussed,Significant Elements of Events & Summary of Reactor Scrams Encl
ML20236P2841987-11-0505 November 1987
Summary of Operating Reactors Events Meeting 87-38 on 871103.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20235Z4081987-10-16016 October 1987
Summary of Operating Reactors Events Meeting 87-35 on 871013.List of Attendees,Events Discussed,Significant Elements of Events & Summary of Reactor Scrams & Comparison of Wk Statistics W/Industry Averages Encl
ML20236E4581987-09-23023 September 1987
Trip Rept of 870914-16 Visit to Madison,Pa to Provide Technical Assistance to NRC for Evaluation of Flaw Indication in Facility Reactor Pressure Vessel
ML20236E4661987-09-22022 September 1987
Trip Rept of 870915-16 Visit to Westinghouse Waltz Mill Site in Pittsburg to Review Demonstration Phase Results of Insp Program Plan & June 1987 Flaw Indication
ML20237J1221987-08-20020 August 1987
Summary of Operator Reactors Events Meeting 87-27 on 870818. List of Attendees & Viewgraphs Encl
ML20215C8721987-06-0808 June 1987
Summary of Operating Reactors Events Meeting 87-10 on 870406 Re Events Which Occurred Since 870330 Meeting.List of Attendees,Events Discussed & Significant Elements of Events & Summary of Reactor Scrams & Significant Events Encl
ML20215C1851987-06-0808 June 1987
Summary of 870602 Operating Reactors Events Meeting Re Briefing Senior Managers from Nrr,Res.Aeod & Regional Ofcs on Events That Occurred Since 870526 Meeting,Attendees List, Meeting Viewgraphs & Summary of Reactor Scrams Encl
ML20214P6121987-05-27027 May 1987
Summary of Operating Reactors Events Meeting 87-14 on 870512 W/Nrr,Res,Aeod & Regional Ofcs Re Events Which Occurred Since 870507 Meeting.List of Attendees & Viewgraphs Encl
ML20212N2721987-03-0505 March 1987
Summary of Operating Reactor Events Meeting 87-005 on 870302.List of Attendees & Viewgraphs Encl
ML20215D0631986-12-11011 December 1986
Summary of Operating Reactor Events Meeting 86-42 on 861201. List of Attendees & Viewgraphs Re Significant Elements of Events Discussed Encl
ML20214P8971986-11-25025 November 1986
Summary of Operating Reactors Events Meeting 86-40 on 861117.List of Attendees,Events Discussed,Significant Events Data Sheet & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
ML20214P9371986-11-21021 November 1986
Summary of Operating Reactor Events Meeting 86-39 on 861110.List of Attendees,Events Discussed & Significant Elements of Events Encl
ML20210C4211986-09-11011 September 1986
Summary of Operating Reactors Events Meeting 86-31 on 860908.Lists of Attendees,Events & Significant Elements & Assignments Encl
ML20211G7781986-06-13013 June 1986
Summary of Operating Reactor Events Meeting 86-19 on 860609. List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20197F7721986-05-0808 May 1986
Summary of Operating Reactors Events Meeting 86-15 on 860505.List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20197F1691986-05-0808 May 1986
Summary of Operating Reactors Events 860428 Meeting W/Listed Divs Re Chernobyl Nuclear Accident & Events at Us Reactors
ML20154P0071986-03-12012 March 1986
Summary of Operating Reactor Events 860303 Meeting 86-06 W/Ornl Re Events Occurring Since 860224 Meeting.Followup Review Assignments,Status of Previous Assignments,List of Attendees & Viewgraphs Encl
ML20154C9931986-02-24024 February 1986
Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl
ML20151N3021985-12-19019 December 1985
Summary of 851216 Operating Reactor Events Meeting 85-27. Attendance List,Viewgraphs of Events Discussed,Significant Event Elements,Assignment of Followup Review Responsibility & Status of Previous Assignments Encl
ML20205J0421985-11-21021 November 1985
Summary of ACRS 307th Meeting on 851107-09 in Washington, DC Re Review of Application of Beaver Valley Power Station 2,EPA Stds for High Level Radwaste Repository & Investigation of Significant Incidents at Power Plants
ML20128K7491985-07-12012 July 1985
Summary of Operating Reactor Events Meeting 85-11 on 850701. List of Attendees,Events Discussed,Significant Elements of Events & Assignment of Followup Review Responsibility Encl
ML20128A9061985-05-13013 May 1985
Summary of 850507 Operating Reactors Events Meeting.List of Attendees,Events Discussed & Assignments Encl
ML20133H2101984-09-0202 September 1984
Summary of ACRS Subcommittee on Class 9 Accidents 840723 Meeting W/Pasny in Washington,Dc Re Recent Source Term Analyses
ML20126L2331981-05-0101 May 1981
Summary of 810429 Meeting W/Pwr Owners Group Re Thermal Shock to Reactor Pressure Vessels.All Parties Agree That Thermal Shock W/Subsequent Repressurization Is Safety Concern Needing Prompt Evaluation
ML20148B4901979-12-28028 December 1979
Summary of 791025 Meeting W/Util & Westinghouse Re Recent Steam Generator Insp at Site
1996-08-29
[Table view]
Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20148B5761996-10-0404 October 1996
Summary of 434th Meeting of ACRS on 960912-13 Re Capability of SCAP/RELAP5 Code to Predict SG Temps During Severe Accidents
ML20129G4921996-08-29029 August 1996
Summary of 433rd ACRS Meeting on 960808-10 Re Design Changes Proposed by Asea Brown Boveri - C-E Re Certification of Sys 80+ Design,Secy 96-128,proposed Rev 3 to Reg Guide 1.8,revs to Reg Guides 1.84,1.85 & 1.147 & Rev 3 to Reg Guide 1.105
ML20059H7581994-01-0303 January 1994
Summary of Operating Reactors Events Meeting 93-48 on 931222
ML20059C8321993-07-21021 July 1993
Summary of 398th ACRS Meeting on 930610-11 in Bethesda,Md Re SECY-93-113,public Comments on Advanced LWR Severe Accident Plant performance,SECY-93-067 & Reactor Operating Experience Related to Salem Unit 2 & Indian Point Unit 3
ML20056E2121993-06-15015 June 1993
Summary of Operating Reactors Events Meeting 93-21 on 930609
ML20056D8341993-05-26026 May 1993
Summary of Operator Reactors Event Meeting 93-18 on 930519
ML20056D9841993-05-18018 May 1993
Summary of Operating Reactors Events Meeting 93-17 on 930512
ML20127D1321993-01-12012 January 1993
Summary of Operating Reactors Events Meeting 93-01 on 930106
ML18096A8711992-06-17017 June 1992
Summary of 920602 Meeting W/Nrc & Pse&G Re Sea Turtle Conservation Plan.Major Points Discussed in Meeting Listed
ML20217C5121991-07-0303 July 1991
Summary of Operating Reactors Events Meeting 91-12 on 910626
ML20058K0311990-11-23023 November 1990
Summary of Operating Reactors Events Meeting 90-28 on 901114 Re Reactor Scrams for Wk Ending 901111.Attendees Listed
ML20062C8111990-10-16016 October 1990
Summary of Operating Reactors Events Meeting 90-25 on 901010.List of Attendees,Reactor Scram Statistics & Tabulation of Events Encl
ML20245G6411989-06-15015 June 1989
Summary of Operating Reactors Events Meeting 89-23 on 890614.On 890607,multiple Electrical Distribution Sys Problems Occurred at Oconee,Units 1,2 & 3.On 890610,unit Power Signal Caused Scram
ML20245A3851989-05-30030 May 1989
Summary of Operating Reactors Events Meeting 89-20 on 890524.List of Meeting Attendees & Viewgraphs Encl
ML20247K0901989-05-23023 May 1989
Summary of 890517 Meeting W/Inpo Re Similarities & Differences Between Performance Indicator Programs.Detailed Discussion Encl
ML20247K1011989-05-16016 May 1989
Summary of 890517 Meeting W/Inpo in Bethesda,Md Re Similarities & Differences Between INPO & NRC Performance Indicators
ML20245C6541989-04-12012 April 1989
Summarizes 890313 Meeting w/C-E to Discuss Results of Salem Project & Licensing of Future C-E Projects Re RTD Bypass Elimination.Agenda & Viewgraphs Encl
ML20150D7171988-07-0707 July 1988
Summary of Operating Reactors Events Meeting 88-26 on 880628
ML20153B0281988-06-22022 June 1988
Summary of Operating Reactors Events Meeting 88-25 on 880621.List of Attendees,Discussion of Significant Elements of Events & Summary of Reactor Scrams Encl
ML20148S3821988-03-31031 March 1988
Summary of Operating Reactors Events Meeting 88-13 on 880329.List of Attendees,Discussion of Events & Summary of Reactor Scrams Encl
ML20148Q0801988-01-21021 January 1988
Summary of Operating Reactors Events Meeting 88-03 on 880119.List of Events & Summaries of Presented Events & 1988 Scrams Encl
ML20148H6621988-01-15015 January 1988
Summary of Operating Reactors Events Meeting 88-02 on 880112 Re Events Which Occurred Since Last Meeting on 880105.List of Attendees,Significant Elements of Events & Tabulation of long-term Followup Assignments to Be Completed Encl
ML20149F4741988-01-0707 January 1988
Summary of Operating Reactors Events Meeting 88-01 on 870105 Re Events That Occurred Since 871222.List of Attendees & Viewgraphs Encl
ML20237F2471987-12-18018 December 1987
Summary of Operating Reactor Events Meeting 87-44 on 871215. List of Attendees,Events Discussed,Significant Elements of Events & Summary of Reactor Scrams Encl
ML20236P2841987-11-0505 November 1987
Summary of Operating Reactors Events Meeting 87-38 on 871103.List of Attendees,Viewgraphs & Summary of Reactor Scrams Encl
ML20235Z4081987-10-16016 October 1987
Summary of Operating Reactors Events Meeting 87-35 on 871013.List of Attendees,Events Discussed,Significant Elements of Events & Summary of Reactor Scrams & Comparison of Wk Statistics W/Industry Averages Encl
ML20237J1221987-08-20020 August 1987
Summary of Operator Reactors Events Meeting 87-27 on 870818. List of Attendees & Viewgraphs Encl
ML20215C1851987-06-0808 June 1987
Summary of 870602 Operating Reactors Events Meeting Re Briefing Senior Managers from Nrr,Res.Aeod & Regional Ofcs on Events That Occurred Since 870526 Meeting,Attendees List, Meeting Viewgraphs & Summary of Reactor Scrams Encl
ML20215C8721987-06-0808 June 1987
Summary of Operating Reactors Events Meeting 87-10 on 870406 Re Events Which Occurred Since 870330 Meeting.List of Attendees,Events Discussed & Significant Elements of Events & Summary of Reactor Scrams & Significant Events Encl
ML20214P6121987-05-27027 May 1987
Summary of Operating Reactors Events Meeting 87-14 on 870512 W/Nrr,Res,Aeod & Regional Ofcs Re Events Which Occurred Since 870507 Meeting.List of Attendees & Viewgraphs Encl
ML20212N2721987-03-0505 March 1987
Summary of Operating Reactor Events Meeting 87-005 on 870302.List of Attendees & Viewgraphs Encl
ML20215D0631986-12-11011 December 1986
Summary of Operating Reactor Events Meeting 86-42 on 861201. List of Attendees & Viewgraphs Re Significant Elements of Events Discussed Encl
ML20214P8971986-11-25025 November 1986
Summary of Operating Reactors Events Meeting 86-40 on 861117.List of Attendees,Events Discussed,Significant Events Data Sheet & Summary of Presented Events That Will Be Input to NRC Performance Indicator Program Encl
ML20214P9371986-11-21021 November 1986
Summary of Operating Reactor Events Meeting 86-39 on 861110.List of Attendees,Events Discussed & Significant Elements of Events Encl
ML20210C4211986-09-11011 September 1986
Summary of Operating Reactors Events Meeting 86-31 on 860908.Lists of Attendees,Events & Significant Elements & Assignments Encl
ML20211G7781986-06-13013 June 1986
Summary of Operating Reactor Events Meeting 86-19 on 860609. List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20197F7721986-05-0808 May 1986
Summary of Operating Reactors Events Meeting 86-15 on 860505.List of Attendees,Events Discussed & Status of Previous Assignments Encl
ML20197F1691986-05-0808 May 1986
Summary of Operating Reactors Events 860428 Meeting W/Listed Divs Re Chernobyl Nuclear Accident & Events at Us Reactors
ML20154P0071986-03-12012 March 1986
Summary of Operating Reactor Events 860303 Meeting 86-06 W/Ornl Re Events Occurring Since 860224 Meeting.Followup Review Assignments,Status of Previous Assignments,List of Attendees & Viewgraphs Encl
ML20154C9931986-02-24024 February 1986
Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl
ML20151N3021985-12-19019 December 1985
Summary of 851216 Operating Reactor Events Meeting 85-27. Attendance List,Viewgraphs of Events Discussed,Significant Event Elements,Assignment of Followup Review Responsibility & Status of Previous Assignments Encl
ML20205J0421985-11-21021 November 1985
Summary of ACRS 307th Meeting on 851107-09 in Washington, DC Re Review of Application of Beaver Valley Power Station 2,EPA Stds for High Level Radwaste Repository & Investigation of Significant Incidents at Power Plants
ML20128K7491985-07-12012 July 1985
Summary of Operating Reactor Events Meeting 85-11 on 850701. List of Attendees,Events Discussed,Significant Elements of Events & Assignment of Followup Review Responsibility Encl
ML20128A9061985-05-13013 May 1985
Summary of 850507 Operating Reactors Events Meeting.List of Attendees,Events Discussed & Assignments Encl
ML20133H2101984-09-0202 September 1984
Summary of ACRS Subcommittee on Class 9 Accidents 840723 Meeting W/Pasny in Washington,Dc Re Recent Source Term Analyses
ML20126L2331981-05-0101 May 1981
Summary of 810429 Meeting W/Pwr Owners Group Re Thermal Shock to Reactor Pressure Vessels.All Parties Agree That Thermal Shock W/Subsequent Repressurization Is Safety Concern Needing Prompt Evaluation
ML20148B4901979-12-28028 December 1979
Summary of 791025 Meeting W/Util & Westinghouse Re Recent Steam Generator Insp at Site
ML20197B5971978-10-23023 October 1978
Summary of 781018 Meeting Re Residual Heat Removal Sys & Its Relation to Cold Shutdown of Subj Facil.Applicant Will Demonstrate by Oper Test That Atmospheric Steam Dump Valves Will Be Used & Will Submit Procedure Documentation by 781106
ML20062B7391978-10-18018 October 1978
Summary of 781012 Meeting W/Util Re Steam Generator Program at Facility
ML20245C3211977-07-11011 July 1977
Summary of 770525 Meeting W/Westinghouse & Util Group Members Re Efforts to Prevent Reactor Vessel Overpressurization.W/O Encls
1996-08-29
[Table view] |
Text
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _
. . g JUN 151993 .
w w MEMORANDUM FOR: Brian K. Grimes, Director Division of Operating Reactor Support FROM: Alfred E. Chaffee, Chief Events Assessment Branch Division of Operating Reactor Support
SUBJECT:
OPERATING REACTORS EVENTS BRIEFING JUNE 9, 1993 - BRIEFING 93-21 On June 9, 1993, we conducted an Operating Reactors Events Briefing (93-21) to inform senior managers from offices of the Commission, EDO, NRR, AEOD, RES, and regional offices of selected events that occurred since our last briefing on June 2, 1993.
Enclosure 1 lists the attendees. Enclosure 2 presents the significant elements of the discussed events.
Enclosure 3 contains reactor scram statistics for the week ending June 6, 1993. No significant events were identified for input into the NRC performance indicator program.
l
- original signed by Robert L. Dennig for -
Alfred E. Chaffee, Chief Events Assessment Branch Division of Operating Reactor Support
Enclosures:
As stated DISTRIBUTION:
Central Files cc w/ attachments: PDR See next page LKilgore, SECY EAB R/F KGray RDennig EGoodwin l DSkeen l EBenner Y&
9: OR y NRR EAB: DORS:NRR 1RR KGray EGoodwin AC a fee l (d? /\ D/93 /, / /93 ( / /V/ 936 L #l/ g< a . l OFFICIAL RECORD COPY DOCUMENT NAME: ORTRANS.KAG (G:KAG) hl g/l 090028 NRC F1E CENTER COPY
/ "y v ,
f e; 'y.:.,!
);u,W / i 9308200279 930615 N <- .
PDR ORG NRRB PDR i lU c~ .
i
l ** h A l 0 w w l
cc:
T. Murley, NRR (12G18)
F. Miraglia, NRR (12G18)
J. Stont (PD1-2)
C. Miller (PD1-2)
F. Gillespie, NRR (12G18)
J. Partlow, NRR (12G18) i S. Varga, NRR (14E4)
J. Calvo, NRR (14A4)
G. Lainas, NRR (14H3)
J. Roe, NRR (13E4)
J. Zwolinski, NRR (13H24)
E. Adensam, NRR (13E4)
W. Russell, NRR (12G18)
J. Richardson, NRR (7D26)
A. Thadani, NRR (8E2)
S. Rosenberg, NRR (10E4)
C. Rossi, NRR (9A2)
B. Boger, NRR (10H3)
F. Congel, URR (10E2) .
D. Crutchfield, NRR (11H21)
W. Travers, NRR (11B19)
D. Coe, ACRS (P-315)
E. Jordan, AEOD (MN-3701)
G. Holahan, AEOD (MN-9112)
L. Spessard, AEOD (MN-3701)
K. Brockman, AEOD (MN-3206)
S. Rubin, AEOD (MN-5219)
M. Harper, AEOD (MN-9112)
G. Grant, EDO (17G21)
R. Newlin, GPA (2G5)
E. Beckjord, RES (NLS-007)
A. Bates, SECY (16G15)
G. Rammling, OCM (16G15)
T. Martin, Region I W. Kane, Region I C. Hehl, Region I S. Ebneter, Region II E. Merschoff, Region II S. Vias, Region II J. Martin, Region III E. Greenman, Region III J. Milhoan, Region IV B. Beach, Region IV B. Faulkenberry, Region V K. Perkins, Region V bec: Mr. Sam Newton, Manager Events Analysis Department Institute of Nuclear Power Operations 700 Galleria Parkway Atlanta, GA 30339-5957 ,
A.
. m.k ENCLOSURE 1 l
LIST OF ATTENDEES OPERATING REACTORS EVENTS FULL BRIEFING (93-21)
JUNE 9, 1993 NAME OFFICE NAME OFFICE A. CHAFFEE NRR G. ZECH NRR E. BENNER NRR A. THADANI NRR K. GRAY NRR S. LONG NRR S. WITTENBERG NRR R. JONES NRR E. GOODWIN NRR P. ENG NRR R. DENNIG NRR M. DAVIS NRR J. WERMIEL NRR B. BUCKLEY NRR N. CONICELLA NRR A. KUGLER NRR l R. CAPRA NRR R. GALLO NRR B. GRAMM NRR J. DEBOR NRR N. CAMPBELL NRR J. SCARBOROUGH OCM/KR l M. CHATTERTON NRR M. FLEISHMAN OCM/KR J. STONE NRR B. DOOLITTLE J. CALVO OCM/FR ,
NRR V. BENAROYA AEOD J. PARTLOW NRR l D. WHEELER OEDO C. MILLER NRR R. GREGER OEDO C. GRIMES NRP J. MURPHY RES M. RING NRR i
TELEPHONE ATTENDANCE (AT ROLL CALL) :
l Recions Resident Inspectors l Region I j Region II !
Region III Region IV Region V IIT/AIT Tean Leaders Misc. l W. Ruland, Region I l
ENCLOSURE 2 OPERATING REACTORS EVENTS BRIEFING 93-21 LOCATION: 10 B11, WHITE FLINT WEDNESDAY, JUNE 9, 1993, 11:00 A.M.
SALEM, UNIT 2 R0D CONTROL SYSTEM SINGLE FAILURE POTENTIAL (AIT)
VARIOUS PLANTS SOFTWARE ISSUES l
l l
PRESENTED BY: EVENTS ASSESSMENT BRANCH l DIVISION OF OPERATING REACTOR !
SUPPORT, NRR l 1
l l
O O 93-21 SALEM, UNIT 2 R0D CONTROL SYSTEM SINGLE FAILURE POTENTIAL (AIT)
JUNE 6, 1993 PROBLEM SINGLE FAILURE IN THE R0D CONTROL SYSTEM COULD RESULT IN !
WITHDRAWAL OF ONE OR MORE RODS IN A GROUP WHEN OTHER RODS WERE BEING INSERTED.
CAUSE DESIGN WEAKNESS AND P00R MAINTENANCE PRACTICES.
SAFETY SIGNIFICANCE R0D WITHDRAWAL 0F THIS NATURE MAY RESULT IN EXCEEDING FUEL DESIGN LIMITS AND LOCALIZED FUEL DAMAGE.
CHRON0 LOGY OF EVENTS MARCH 30, 1993: l o WESTINGHOUSE R0D CONTROL PREVENTATIVE MAINTENANCE SERVICE COMMENCES.
o SOME PROBLEMS FOUND AND CORRECTED: TYPICAL TYPES AND NUMBERS PER WESTINGHOUSE EXPERIENCE.
MAY 26, 1993: I o DEVELOPED CONTROL BANK C COUNTER PROBLEMS. i o CIRCUIT CARDS REPLACED DUE TO DIODE FAILURES.
CONTACTS: W. RULAND, REGION I/DRS AIT: YES E. BENHER, NRR/ DORS SIGEVENT: TBD
REFERENCE:
10 CFR 50.72 #25609
l
MAY 27, 1993:
o SHUTDOWN BANK A WITHDRAWN, NO R0D MOVEMENT INDICATED !
WITH COUNTER AT 20 STEPS. i o RODS INSERTED T0 6 STEPS, R0D ISA3 OBSERVED INDICATING 8 STEPS ON ANALOG R0D POSITION INDICATION (ARPI). ;
o SHUTDOWN BANK A RODS INSDiTED TO ZER0 STEPS ON COUNTERS, R0D ISA3 INDICATING 15 STEPS ON ARPI. !
o FOUND AND REPLACED TWO DEFECTIVE SLAVE CYCLER CARDS.
MAY 28, 1993:
o ALL RODS WITHDRAWN WITH CONTROL BANK D AT 160 STEPS.
o CONTROL BANK C GROUP 1 DROPPED, INITIATED MANUAL TRIP.
o FOUND AND REPLACED DEFECTIVE FIRING CARD CIRCUITRY.
o DURING MAINTENANCE RETEST, POWER SUPPLY FUSES BLOWN.
o MULTIPLE FAILURES CAUSED BY POWER SUPPLY SHORT.
JUNE 2, 1993:
o P-TO-A CONVERTER AND PLANT COMPUTER INDICATED ZER0 STEPS ON CONTROL BANKS B AND D.
o FOUND AND REPAIRED DEFECTIVE CIRCUIT CARD. j JUNE 4, 1993:
o NRC QUESTIONED SINGLE FAILURE DESIGN.
o MANAGEMENT DIRECTS SHUTDOWN TO MODE THREE.
DISCUSSION i WESTINGHOUSE SPECIAL MAINTENANCE ACTIVITY BEING PERFORMED l DUE TO PAST GENERIC CONCERNS.
(I CD ;
SALEM, UNIT 2 93-21 l COMMUNICATIONS ON PAST EVENTS- I o NUREG/CR-1331, " DATA SUMMARIES OF LICENSEE EVENT l REPORTS OF CONTROL RODS AND DRIVE MECHANISMS AT U.S.
COMMERCIAL NUCLEAR POWER PLANTS" ,
o NUREG/CR-5555, " AGE ASSESSMENT OF WESTINGHOUSE PWR ;
CONTROL R0D SYSTEMS." l FOLLOWUP PUBLIC SERVICE ELECTRIC AND GAS: l o PLACED UNIT 2 IN HOT STANDBY.
o PLACED UNIT 1 R0D CONTROL IN MANUAL AND DEVELOPED STANDING ORDERS ON TRANSIENT RESPONSE.
JUSTIFICATION FOR CONTINUED OPERATION PREPARED DUE TO TRIP DN JUNE 8, 1993, LICENSEE WILL NOT RESTART UNIT UNTIL R0D CONTROL ISSUE IS RECTIFIED !
o MADE NPRDS OPERATING EXPERIENCE ENTRY ON JUNE 5, 1993.
PLANS TO UPDATE ENTRY TODAY WESTINGHOUSE:
o P0TENTIAL INCIDENT PROCESS HAS BEEN ACTIVATED ON l JUNE 8, 1993.
o GENERIC APPLICABILITY CONFIRMED.
NUCLEAR REGULATORY COMMISSION:
o REGION I SENT A SPECIALIST INSPECTOR TO THE SITE.
o AN AUGMENTED INSPECTION TEAM HAS BEEN DISPATCHED TO THE SITE.
o CONTACTED REGULATORY RESPONSE GROUP 0F THE WESTINGHOUSE OWNER'S GROUP ON JUNE 8, 1993.
o COMMISSIONERS' ASSISTANT BRIEFING PERFORMED.
o EXPEDIENT INFORMATION NOTICE BEING DEVELOPED.
o CONFIRMATORY ACTION LETTER GENERATED.
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O e SALEM, UNIT 2 93-21 o PLAN TO CONTACT COMBUSTION ENGINEERING AND BABCOCK AND WILCOX AS WELL, IN THE NEAR TERM.
o NEED FOR ADDITIONAL ACTION BEING EVALUATED.
INP0:
o SIGNIFICANT EVENT NOTIFICATION BEING DEVELOPED.
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O O 93-21 SOFTWARE ISSUES AT NUCLEAR POWER PLANTS JUNE 9, 1993 SALEM OVERHEAD ANNUNCIATOR (OHA)
A. BACKGROUND
- 1. WHILE AT 100% POWER 12/13/92, SALEM UNIT 2 OHA DID NOT UPDATE ALARMS FOR 1.5 HOURS. WHEN OPERATORS REALIZED THIS, THEY RESET OHA COMPUTER AND RESTORED OPERATION.
- 2. NRC INSPECTION TEAM FOUND:
SAFETY AREA HARDWIRED PANEL ALARMS BACKUP HOWEVER, UNDETECTED LOSS OF OHA COULD DELAY OPERATOR RESPONSE DESIGN SPECIFICATION DEFICIENCIES COMPUTER-HUMAN INTERACTION DEFICIENCIES B. SYSTEM DESCRIPTION
- 1. REAL-TIME, HIGH SPEED DISTRIBUTED MULTI-MICR0 PROCESSOR SYSTEM
- 2. HARDWARE SEQUENTIAL EVENT RECORDER (SER)
REDUNDANT PROCESSORS IN HOT STANDBY FAILOVER CONFIGURATION i SCANNER CARDS TIME TAG ALARMS DISTRIBUTED LOGIC PROCESSORS l REDUNDANT PROCESSORS FOR ALARM WINDOWS ;
REMOTE CONFIGURATION WORKSTATION (RCWS)
COMMANDS & DATA TO CONFIGURE SYSTEM COMMANDS TO RETRIEVE DATA FROM SYSTEM CONTACT: E. BENNER, NRR/ DORS
O O SOFTWARE ISSUES 93-21
- 3. SOFTWARE :
SEQUENTIAL EVENTS RECORDER (SER) l VEND 0R SPECIALIZED DESIGN PROGRAMS l RUN UNDER PURCHASED MULTITASKING OPERATING SYSTEM PROGRAM l DISTRIBUTED LOGIC PROCESSORS l VENDOR SPECIALIZED DESIGN PROGRAMS :
REMOTE CONFIGURATION WORK STATION (RCWS) l VENDOR SPECIALIZED DESIGN PROGRAMS j COMMERCIAL 0FF-THE-SHELF (C0TS) PROGRAMS !
. l C. FINDINGS: DESIGN AREA !
- 1. INADEQUATE SPECIFICATION / REVIEW 0F THE SYSTEM SOFTWARE REQUIREMENTS 4 N0 SOFTWARE DESIGN REVIEW N0 TOP LEVEL SOFTWARE DESIGN SPECIFICATION NO INTEGRITY CHECKS ON DATA TRANSFER FOR MAJOR SYSTEM BLOCKS NO TRANSITION TO A KNOWN STATE UPON PROCESSOR SUSPENSION OF PROCESSING INCONSISTENT INDICATION OF SYSTEM STATUS UNDER ALL PROCESSING CONDITIONS SEQUENCE AND PRIORITY OF PROCESSING UNDER NORMAL, ABNORMAL AND HAZARD CONDITIONS MISSING DIAGNOSTIC RESULTS NOT MADE AVAILABLE FOR USE ON THE DISTRIBUTED LOGIC PROCESSORS
O $
SOFTWARE ISSUES 93-21 D. FINDINGS: COMPUTER-HUMAN INTERACTION AREA NO CLEAR, DIRECT INDICATION TO OPERATOR OF SYSTEM STATUS UNDER ALL CONDITIONS INCORRECT DATA LINK USAGE ALLOWED WITH NO FEEDBACK TO OPERATOR DATA LINK INPUT TO COMPUTER NOT COMPREHENSIVELY PROTECTED AGAINST:
KEYB0ARD ERRORS EXCESSIVE TIME WAITING FOR DATA OR COMMANDS COMMAND SEQUENCE TRANSPOSITIONS COMMAND MNEMONIC INDEPENDENCE & CONSISTENCY E. FINDINGS: OPERATION & MAINTENANCE AREA 0 & M PERSONNEL NOT ALERTED TO DEBUG PHASE OF DIGITAL SYSTEMS EVEN AFTER TURNOVER TRANSIENT BUGS PREVALENT, RECOGNITION AND SYSTEMATIC APPROACH HEEDED l
O O
SOFTWARE ISSUES 93-21 INDIAN P0 INT 3 ATWS MITIGATION ACTUATION CIRCUITRY (AMSAC)
^
A. BACKGROUND INSTALLED IN 5/89 TO CONFORM WITH 50.62 ATWS RULE.
AT POWER ON 1/12/93, IP3 DETERMINED AMSAC IN0PERABLE DUE TO WRONG SOFTWARE VERSION INSTALLED SINCE 7/8/92.
NRC DETERMINED AMSAC NOT END-TO-END TESTED SINCE INITIAL INSTALLATION, AND CONDUCTED FURTHER ,
DETAILED INSPECTIONS IN THE DESIGN AREA.
IP3 DECIDED TO SHUTDOWN 2/26/93 TO REVIEW, TEST !
AMSAC.
INSPECTION RESULTS:
AMSAC DID NOT FULLY MEET ATWS RULE SINCE INITIAL INSTALLATION.
CRITICAL PART OF SOFTWARE MISSING.
B. SYSTEM DESCRIPTION
- 1. HARDWARE FOXBOR0 INTELLIGENT AUTOMATION (I/A) PRODUCTS
- 2. SOFTWARE l FOXBOR0 I/A SOFTWARE LIBRARY C. FINDINGS: DESIGN AREA
- 1. INCORRECT TRANSLATION OF SYSTEM REQUIREMENTS TO SOFTWARE VEND 0R CRITICAL SEAL-IN OF TIME DELAY VALUE AS A NON-LINEAR FUNCTION OF TURBINE POWER AT LOW FLOW CONDITIONS NOT SPECIFIED WOULD CAUSE AMSAC TO NOT FULFILL INTENDED FUNCTION
O O
SOFTWARE ISSUES 93-21
- 2. N0 SOFTWARE DESIGN REVIEW ACCEPTED VENDOR-GENERATED CONTROL BLOCK SCHEMATICS D. FINDINGS: OPERATION & MAINTENANCE AREAS
- 1. ACCEPTANCE TESTS NOT COMPREHENSIVE !
COMPREHENSIVE TESTS WOULD HAVE TESTED CRITICAL TIME DELAY VALUE SEAL-IN REQUIREMENT
- 2. INADEQUATE SOFTWARE CONFIGURATION AND DISK CONTROL CAUSED LOSS OF AMSAC FUNCTION FOR APPR0X SIX MONTHS WRONG SOFTWARE VERSION
- 3. SOFTWARE MAINTENANCE NOT CONTROLLED
- 4. HARDWARE FAILURE INDICATIONS PROVIDED BY VENDOR NOT USED BETWEEN SURVEILLANCE PERIODS FOR ERROR DETECTION ,
- 5. PASSWORD FOR SOFTWARE ENTRY NOT CONTROLLED 1
l SOFTWARE ISSUES 93-21 NRC GENERIC ACTIONS i
1 INFORMATION NOTICES:
A. " ANNUNCIATORS" i e SALEM LOSS OF ANNUNCIATORS B. 92-06, SUPPLEMENT 1, " RELIABILITY OF ATWS MITIGATION SYSTEMS AND OTHER NRC-REQUIRED EQUIPMENT NOT CONTROLLED BY PLANT TECHNICAL SPECIFICATIONS" e INDIAN POINT 3 AMSAC FAILURES C. " PROBLEMS WITH DIGITAL CONTROL CONSOLE SYSTEMS AT NON-POWER REACTORS" e TRIGA REACTOR DIGITAL CONTROL SYSTEM AN0MALIES AT ARMED FORCES RADI0 BIOLOGY RESEARCH INSTITUTE AND PENNSYLVANIA STATE UNIVERSITY D. " IMPROPER INTEGRATION OF SOFTWARE INT 0 OPERATING I
PRACTICES" e INDIAN POINT 3 AMSAC FAILURES
- SALEM LOSS OF ANNUNCIATORS i e MAINE YANKEE DIVERSE SCRAM SYSTEM FAILURE e FITZPATRICK IN0PERABLE TORUS TEMPERATURE MONITORING SYSTEM
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SOFTWARE ISSUES 93-21 1
INSPECTION ACTIVITIES: i i
I e REGION I HAS DEVELOPED AN INSPECTION PROGRAM TO l ASSESS THE ADEQUACY OF SOFTWARE INTEGRATION AT l POWER REACTORS. l J
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ENCLOSURE 3 o REACTOR SCRAM o ,
j Reporting Period: 05/31/93 to 06/06/93 )
l YTD YTD ABOVE BELOW YTD E PtaET & Uhfi PMR IIf1 cat /SE CTMPL IC AY10NS JH .ill TOTAL I l
D$/31/93 PILCRIM 1 25 SA Ecpipment Failure NO 2 0 2 ,
l 06/03/93 MILLS 10*iE 2 100 SA EqJipnent Failure No 3 1 4 i i
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3: Year To Date (YTD) Totals tretixle Events Within The Calendar Tear Indicated By The Erd Oste of The specified acporting Feriod 10 Page:1 06/09/93
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- . w COMPARISDN OF WEEKLY SORAM STATISTICS WITH IkDUSTRY AVERAGE 5 PERIOD ENDikG 06/D6/93 NUMEER 1993 1992 1991* 1990* 1989*
OF WEEKLY WEEKLY WEEKLY WEEKLY WEEKLY SCRAN CAUSE SCRAw.S AVERAGE AVERAGE AVERAGE AVERAGE AVERAGE (YTD)
POWER GREATER THAN OR EQUAL TO 15%
EQUIPMENT FAILURE
- 2 2.1 2.6 2.9 3.4 3.1 DESIGN /INSTALLATIDW ERROR
CPERAT!kG ERROR
- 0 0.4 0.2 0.6 0.5 1.0 MAINTEAAACE ERROR
EXTERAAL* O 0.1 - - - -
OTHER* O 0.0 0.2 - -
0.1 S *totst 2 3.2 3.4 3.5 3.9 4.2 POWER LESS THAN 15%
EQUIPMENT FAILURE
- 0 0.4 0.4 0.3 0.4 0.3 DESIGW/1kSTALLAT10W ERROR
OPERATING ERROR
- O 0.2 0.1 0.2 0.1 0.3 MAlWTENAACE ERROR
EXTERAAL* O 0.0 - - - -
OTHER* O 0.0 0.1 - - -
5 4tetet 0 0.6 0.7 0.5 0.5 0.6 TOTAL 2 3.8 4.1 4.0 4.4 4.8 1993 1992 1991 1990 1989 WO. OF WEEKLY WEEKLY WEEKLY WEEKLY WEEKLY SCRAM TYPE SCRAMS AVERAGE AVERAGE AVERAGE AVERAGE AVERAGE (YTD)
TCT AL AUTOMATIC 5: RAMS 2 2.5 3.1 3.3 3.2 3.9 YOTAL MANUAL $0 RAMS 0 1.2 1.0 0.7 1.2 0.9 10 Tats MAY DIFFER EECAUSE OF ROUND!hG OFF
- Detailed breerdo.n not in datatese for 1991 and earlier
- EETERAAL cause included in EQUIPMENT FAILURE
- MAlkTEkANCE EEROR and DESIGW/lkSTALLATION ERROR causes iretu:$ed in OFERAT!WG ERROR
- CTHER cease inctu:$ed in EQUIPMEWT FAILURE 1991 eM 1990 14 Page: 1 06/09/93
- e. .
)TEF .
. PLANT SPECIFIC DATA BASED ON INITIAL REVIEW OF 50.72 REPORTS FOR THE WEEK OF INTEREST. PERIOD IS MIDNIGHT SUNDAY THROUGH MIDNIGHT SUNDAY.
. SCRAMS ARE DEFINED AS REACTOR PROTECTIVE ACTUATIONS WHICH RESULT IN ROD MOTION, AND EXCLUDE PLANNED TESTS OR SCRAMS AS PART OF PLANNED SHUTDOWN '
IN ACCORDANCE WITH A PLANT PROCEDURE. THERE ARE 111 REACTORS HOLDING AN OPERATING LICENSE.
. PERSONELL RELATED PROBLEMS INCLUDE HUMAN ERROR, PROCEDURAL DEFICIENCIES, '
AND MANUAL STEAM GENERATOR LEVEL CONTROL PRO 3LEMS.
COMPLICATIONS: RECOVERY COMPLICATED BY EQUIPMENT FAILURES OR PERSONNEL ERRORS UNRELATED TO CAUSE OF SCRAM.
"OTHER" INCLUDES AUTOMATIC SCRAMS ATTRIBUTED TO ENVIRONMENTAL CAUSES (LIGHTNING), SYSTEM DESIGN, OR UNKNOWN CAUSE. ;
i OEAB SCRAM DATA l
.nual and Automatic Scrams for 1987 ------------------
435
.nual and Automatic Scrams for 1988 ------------------ 291
.nual and Automatic Scrams for 1989 ------------------ 252 '
.nual and Automatic Scrams for 1990 ------------------ 226 '
nual and Automatic Scrams for 1991 ------------------ 206
.nual and Automatic Scrans for 1992 ------------------ 212
.nual and Automatic Scrans for 1993 --(YTD 06/06/93)-- 83 I
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